Influence of medium effects on the rotating hybrid stars

KANG Miao; ZHOU Xia; WANG Xiao-Dong; HENG Yao-Fu

doi:10.1088/1674-1137/34/11/005

Chinese Physics C> 2010, Vol. 34> Issue(11) : 1696-1699 DOI: 10.1088/1674-1137/34/11/005

Influence of medium effects on the rotating hybrid stars

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Abstract：
A hybrid star with a pure quark core, a hadron crust and a mixed phase between the two is considered. The relativistic mean field model for hadron matter and the effective mass bag model for quark matter are used to construct the equation of state for hybrid stars. The influences of medium effects that are parameterized by the strong coupling constant have been discussed on the configuration of rotating stars. The strong coupling constant is a prominent factor that influences the properties of rotating hybrid stars.

References

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Glendenning N K.Compact Stars,Nuclear Physics,Particle Physics and General Relativity.Second Edition:New York:Springer-Verlag,2000[2] Shapiro S L,Teukolsky S A.Black Holes,White Dwarfs and Neutron Stars.New York:Wiley,1983[3] Drago A,Lavagno A,Pagliara G.Nucl.Phys.A,2006,774:823[4] Iida K,Sato K.Astrophys.J,1997,477:294[5] Glendenning N K.Phys.Rev.D,1992,46:1274[6] Prakash M,Cooke J R,Lattimer J M.Phys.Rev.D,1995,52:661[7] Schertler K,Greiner C,Thoma M H.Nucl.Phys.A,1997,616:659[8] Hartle J B.Astrophys J,1967,150:1005[9] Hartle J B,Thorne K S.Astrophys J,1968,153:807[10] Datta B.Nature,1984,308:338[11] Weber F,Glendenning N K.Astrophys J,1992,390:541[12] Benhar O,Ferrari V,Gualtieri L et al.Phys.Rev.D,2005,72:044028[13] Chubarian E,Grigorian H,Poghosyan G et al.Astron.Astrophys.,2000,357:968[14] Baym G,Pethick C J,Sutherland P.Astrophys.J,1971,170:299[15] Barziv O,Kaper L,van Kervijk M H et al.Astron.Astrophys,2001,377:925

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KANG Miao, ZHOU Xia, WANG Xiao-Dong and HENG Yao-Fu. Influence of medium effects on the rotating hybrid stars[J]. Chinese Physics C, 2010, 34(11): 1696-1699. doi: 10.1088/1674-1137/34/11/005

KANG Miao, ZHOU Xia, WANG Xiao-Dong and HENG Yao-Fu. Influence of medium effects on the rotating hybrid stars[J]. Chinese Physics C, 2010, 34(11): 1696-1699. doi: 10.1088/1674-1137/34/11/005 shu

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Received: 2009-12-10
Revised: 2010-01-29

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沈阳化工大学材料科学与工程学院沈阳 110142

Influence of medium effects on the rotating hybrid stars

Corresponding author: WANG Xiao-Dong,

Received Date: 2009-12-10
Accepted Date: 2010-01-29
Available Online: 2010-11-05

Abstract:

A hybrid star with a pure quark core, a hadron crust and a mixed phase between the two is considered. The relativistic mean field model for hadron matter and the effective mass bag model for quark matter are used to construct the equation of state for hybrid stars. The influences of medium effects that are parameterized by the strong coupling constant have been discussed on the configuration of rotating stars. The strong coupling constant is a prominent factor that influences the properties of rotating hybrid stars.